Question

a bullet is fired in upward direction with a intial velocity 25 m/s calculate the distance travelled in upwards direction and time to reach ther

Answer 1

given,
velocity=25m/s
required max height reached by bullet.
max height=(v)^2/2g
=25×25÷20
=125/4
=31.25m
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Answer 2

Answer:

31.25m

2.5 sec

Step-by-step explanation:

Speed will be 0 at top point

v = u + at

v = 0

u = 25 m/s

a = -g = -10m/s^2  as going upward

0 = 25 - 10*t

t = 25/10

t = 2.5 sec

S = ut + (1/2)at^2

S = 25*2.5 + (1/2)(-10)(2.5^2)

= 62.5 - 5*6.25

= 62.5 - 31.25

= 31.25 m